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US 6,641,955 B1Granted
Anode material for lithium secondary battery, an electrode for lithium secondary battery and a lithium secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorsKeiko Matsubara, Toshiaki Tsuno, Sang-Young Yoon
Life of this patent
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Abstract
The present invention provides anode material consisting of anode active material having a great charge-discharge capacity, a high charge-discharge efficiency, a flat discharge curve and good charge-discharge cycle properties, and provides the anode material for a lithium secondary battery consisting of being coated with an amorphous metal compound formed by a metal capable of alloying with lithium on at least one part of the surface of a carbon material capable of absorbing and releasing lithium ion.
Claims7
An anode material for a lithium secondary battery comprising;
- a carbon material capable of absorbing and releasing lithium, the carbon material having a surface;
- and
- an outer coating of an amorphous metal compound formed on at least one part of the surface of the carbon material, the amorphous metal compound including one or more metals selected from the group consisting of Sn, Ag, Fe, Pd, Pb, Al, Si, In, Cu, Co, Zn, and Cd.
Dependencies are inferred from the claim text.